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| Santiago,Alberto Magno Ferreira; Campos,José Maurício de Souza; Oliveira,André Soares de; Valadares Filho,Sebastião de Campos; Santos,Stefanie Alvarenga; Souza,Shirley Motta de; Santiago,Iara Furtado. |
| We evaluated the effect of adding four levels (0, 4, 8 and 12 g/kg, as fed) of a mixture (9:1) of urea and ammonium sulfate (UAs) to sugarcane on feed intake and digestibility, productive performance and metabolism of nitrogen compounds of dairy cows. Twelve multiparous Holstein cows (12.6±0.5 kg/d of milk, 225±90 days in milk) were distributed in three 4 × 4 Latin squares, receiving diets with the same amount of nitrogen (125 g crude protein/kg of dry matter). Concentrate feed was supplied at a ratio of 1 kg for each 3 kg of milk produced. The sugarcane presented 21.9 ºBrix. The level of UAs did not affect intake, total digestibility of diet components, milk production or milk components. Increasing UAs level linearly increased concentration of plasma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metabolism; Milk production; Nitrogen. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600010 |
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| Santos,Stefanie Alvarenga; Campos,José Maurício de Souza; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Oliveira,André Soares de; Souza,Shirley Motta de. |
| Foram avaliadas dietas com silagem de milho e concentrado à base de farelo de soja ou farelo de algodão para fêmeas leiteiras. Quatro dietas experimentais foram constituídas da combinação de dois níveis de concentrado (1 ou 2 kg) e duas fontes proteicas (farelo de soja ou farelo de algodão). Observou-se efeito da interação nível de concentrado × fonte proteica no consumo de matéria seca (MS), fibra em detergente neutro (FDN) e no consumo de nutrientes digestíveis totais (NDT). A quantidade de concentrado influenciou os consumos de proteína bruta (PB), FDN, extrato etéreo (EE), carboidratos nãofibrosos (CNF), matéria orgânica (MO) e de PB por kg de NDT. Não houve efeito nas digestibilidades da MS, FDN, MO e para NDT, porém a fonte proteica influenciou as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Consumo; Energia; Novilhas leiteiras; Proteína. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300025 |
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| Santos,Stefanie Alvarenga; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Valadares,Rilene Ferreira Diniz; Ruas,José Reinaldo Mendes; Prados,Laura Franco; Amaral,Paloma de Melo; Mariz,Lays Débora Silva. |
| The objective of this study was to evaluate intake, digestibility and nitrogen (N) compounds use efficiency in F1 Holstein × Zebu grazing cows. Eighteen crossbred cows (six Holstein × Gir, six Holstein × Guzerat, and six Holstein × Nellore) were used in the experiment, constituting three experimental treatments in simple random samples, under the same feeding conditions. At the estimation of individual intake at grazing, titanium dioxide was used for estimating fecal excretion and indigestible neutral detergent fiber, in order to determine pasture intake. There was effect of the lactation period on nutrient intake, except for the intakes of dry matter (DM), organic matter (OM) and total digestible nutrients (TDN) in % of body weight (BW), as well as those... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria decumbens; Crossbreeding; Milk production; Performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400027 |
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| Lins,Stephany Emyle Barbosa; Pessoa,Ricardo Alexandre Silva; Ferreira,Marcelo de Andrade; Campos,José Maurício de Souza; Silva,José Augusto Bastos Afonso da; Silva,Janaina de Lima; Santos,Stefanie Alvarenga; Melo,Tobias Tobit de Barros. |
| ABSTRACT - The objective of this study was to evaluate the effect of replacing wheat bran by spineless cactus (0, 25, 50, 75, and 100%) in sugar cane-based diets on intake and nutrient digestibility and ruminal parameters of sheep. Five sheep (Santa Inês; average initial weight of 34.0±3.6 kg) were fitted with cannulas in the rumen and then assigned to a 5 × 5 Latin square design. The maximum dry matter (DM; 1414 g d−1), digestible organic matter (658 g d−1), and neutral detergent fiber corrected for ash and protein (NDFap; 425 g d−1) intakes were estimated by replacing 80.2, 89.9, and 50.5% of wheat bran. Dry matter and crude protein digestibility increased by 0.60 and 0.85 g kg-1 of DM. With the replacement of 57.1 and 62.2% of wheat bran, a maximum rate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal nutrition; Cactaceous; Dry season; Feed intake; Rumen fermentation; Semiarid. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000100026 |
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